Part 2

Engine














NOTICE: During engine repair procedures, cleanliness is extremely important. Any foreign material, including any material created while cleaning gasket surfaces that enters the oil passages, coolant passages or the oil pan, can cause engine failure.

NOTE: If the cylinder head(s) is replaced, a new secondary timing chain tensioner will need to be installed.

NOTE: For additional information, refer to the exploded view under the Assembly procedure.


Front Wheel Drive (FWD) vehicles

55. Remove the 4 nuts and the RH catalytic converter.
- Discard the nuts and the gasket.






All vehicles

56. NOTE: Heat shield removed from graphic for clarity.
Remove the 6 nuts and the RH exhaust manifold.

- Discard the nuts and exhaust manifold gaskets.






57. Clean and inspect the RH exhaust manifold.

58. Remove and discard the 6 RH exhaust manifold studs.





59. Remove the RH cylinder block drain plug or, if equipped, the block heater.
- Allow coolant to drain from the cylinder block.






60. Remove the LH cylinder block drain plug.
- Allow coolant to drain from the cylinder block.






61. Remove the pin-type retainer and the cover.





62. Remove the 2 bolts and the 2 LH CMP (Camshaft Position) sensors.





63. Remove the 2 bolts and the 2 RH CMP (Camshaft Position) sensors.





64. Remove the 2 thermostat housing-to-lower intake manifold bolts.





65. NOTICE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.

Remove the 10 bolts and the lower intake manifold.
- Remove and discard the intake manifold and thermostat housing gaskets.

- Clean and inspect all sealing surfaces.






66. Remove the coolant inlet tube and thermostat assembly.
- Remove and discard the O-ring seal.






67. Disconnect and remove the CHT (Cylinder Head Temperature) sensor jumper harness.





68. Remove the bolt and the CKP (Crankshaft Position) sensor.





69. Remove the EOP (Engine Oil Pressure) switch.





70. Remove the 3 bolts and the oil filter adapter.
- Discard the gasket.






71. Remove the 3 bolts and the 3 LH -coil-on-plugs.





72. NOTICE: While removing the valve cover do not apply excessive force to the Variable Camshaft Timing (VCT) oil control solenoid or damage may occur.

NOTICE: If the Variable Camshaft Timing (VCT) oil control solenoid sticks to the VCT (Variable Camshaft Timing) seal, carefully wiggle the valve cover until the bond breaks free or damage to the VCT (Variable Camshaft Timing) seal and VCT (Variable Camshaft Timing) oil control solenoid may occur.

Loosen the 4 bolts and 7 stud bolts.
- Remove the LH valve cover.

- Discard the gasket.






73. Remove the 3 bolts and the 3 RH -coil-on-plugs.





74. NOTICE: While removing the valve cover do not apply excessive force to the Variable Camshaft Timing (VCT) oil control solenoid or damage may occur.

NOTICE: If the Variable Camshaft Timing (VCT) oil control solenoid sticks to the VCT (Variable Camshaft Timing) seal, carefully wiggle the valve cover until the bond breaks free or damage to the VCT (Variable Camshaft Timing) seal and VCT (Variable Camshaft Timing) oil control solenoid may occur.

Loosen the 3 bolts and 8 stud bolts.
- Remove the RH valve cover.

- Discard the gasket.






75. NOTE: LH shown, RH similar.
Inspect the VCT (Variable Camshaft Timing) solenoid seals. Remove any damaged seals.

- Using the Differential Bearing Cone Installer and Handle, remove and discard the seal(s).






76. NOTE: LH shown, RH similar.
Inspect the spark plug tube seals. Remove any damaged seals.

- Using the Spark Plug Tube Seal Remover and Handle, remove and discard the seal(s).






77. Clean the valve covers, cylinder heads and engine front cover sealing surfaces with metal surface prep.

78. Remove the 26 front cover bolts.





79. Using a suitable pry tool, locate the 7 pry pads shown and pry the engine front cover loose and remove.





80. Rotate the crankshaft clockwise and align the timing marks on the intake Variable Camshaft Timing (VCT) assemblies as shown.





81. Remove the 3 bolts and the LH valve train oil tube.





82. NOTE: The Camshaft Holding Tool will hold the camshafts in the Top Dead Center (TDC) position.
Install the Camshaft Holding Tool onto the flats of the LH camshafts.






83. Remove the 3 bolts and the RH valve train oil tube.





84. NOTE: The Camshaft Holding Tool will hold the camshafts in the TDC (Top Dead Center) position.
Install the Camshaft Holding Tool onto the flats of the RH camshafts.






NOTE: The following 3 steps are for primary timing chains that the colored links are not visible.

85. Mark the timing chain link that aligns with the timing mark on the LH intake VCT (Variable Camshaft Timing) assembly as shown.





86. Mark the timing chain link that aligns with the timing mark on the RH intake VCT (Variable Camshaft Timing) assembly as shown.





87. NOTE: The crankshaft sprocket timing mark should be between the 2 colored links.
Mark the 2 timing chain links that align with the timing mark on the crankshaft sprocket as shown.






88. Remove the 2 bolts and the primary timing chain tensioner.





89. Remove the primary timing chain tensioner arm.





90. Remove the 2 bolts and the lower LH primary timing chain guide.





91. NOTE: Removal of the VCT (Variable Camshaft Timing) oil control solenoid will aid in the removal of the primary timing chain.

NOTE: A slight twisting motion will aid in the removal of the VCT (Variable Camshaft Timing) oil control solenoid.

NOTE: Keep the VCT (Variable Camshaft Timing) oil control solenoid clean of dirt and debris.
Remove the bolt and the LH intake VCT (Variable Camshaft Timing) oil control solenoid.






92. NOTE: Removal of the VCT (Variable Camshaft Timing) oil control solenoid will aid in the removal of the primary timing chain.

NOTE: A slight twisting motion will aid in the removal of the VCT (Variable Camshaft Timing) oil control solenoid.

NOTE: Keep the VCT (Variable Camshaft Timing) oil control solenoid clean of dirt and debris.
Remove the bolt and the RH intake VCT (Variable Camshaft Timing) oil control solenoid.






93. Remove the primary timing chain.





94. NOTICE: Do not use power tools to remove the bolt or damage to the LH primary timing chain guide may occur.

Remove the bolt and the upper LH primary timing chain guide.






95. Remove the crankshaft timing chain sprocket.





96. NOTE: The 2 VCT (Variable Camshaft Timing) oil control solenoids are removed for clarity.

NOTE: The Secondary Chain Hold Down is inserted through a hole in the top of the mega cap.
Compress the LH secondary timing chain tensioner and install the Secondary Chain Hold Down in the hole on the rear of the secondary timing chain tensioner guide and let it hold against the mega cap to retain the tensioner in the collapsed position.






97. Remove and discard the 2 LH VCT (Variable Camshaft Timing) assembly bolts.





98. Remove the 2 LH VCT (Variable Camshaft Timing) assemblies and secondary timing chain.
- Remove the Secondary Chain Hold Down.






99. NOTE: When the Camshaft Holding Tool is removed, valve spring pressure may rotate the LH camshafts approximately 3 degrees to a neutral position.
Remove the Camshaft Holding Tool from the LH camshafts.






100. NOTE: Cylinder head camshaft bearing caps are numbered to verify that they are assembled in their original positions.

NOTE: Mark the exhaust and intake camshafts for installation into their original locations.
Remove the 12 bolts, 6 camshaft caps, mega cap and the LH camshafts.